Re: [libcvd-members] libcvd Makefile.in configure.in cvd/fast_corner...

[Edward Rosten]

> I think mine finished after an hour - the resulting .o file is 68 megabytes.

I'm trying to compete with oll of KDE. So far, so good...

> This seems excessive for a single function. (After strip it's 160K). libcvd.a 
> ends up a whopping 100 meg, libcvd.so 30 meg.

I managed to generate trees that I couldn't compile. They'd die after 
taking up all 18G (a nice 64 bit machine there...).

> Oddly, compiling without -g makes no difference.

I have this:

fast $ls -lh *.o
-rw-r--r--  1 edrosten edrosten  97K Jul 25 14:57 fast_10_detect.o
-rw-r--r--  1 edrosten edrosten 358K Jul 25 14:57 fast_10_score.o
-rw-r--r--  1 edrosten edrosten  93K Jul 25 14:57 fast_11_detect.o
-rw-r--r--  1 edrosten edrosten 306K Jul 25 14:57 fast_11_score.o
-rw-r--r--  1 edrosten edrosten  91K Jul 25 14:57 fast_12_detect.o
-rw-r--r--  1 edrosten edrosten 273K Jul 25 14:57 fast_12_score.o
-rw-r--r--  1 edrosten edrosten 187K Jul 25 14:54 fast_7_detect.o
-rw-r--r--  1 edrosten edrosten 1.5M Jul 25 14:56 fast_7_score.o
-rw-r--r--  1 edrosten edrosten 135K Jul 25 14:57 fast_8_detect.o
-rw-r--r--  1 edrosten edrosten 819K Jul 25 14:57 fast_8_score.o
-rw-r--r--  1 edrosten edrosten 108K Jul 25 14:09 fast_9_detect.o
-rw-r--r--  1 edrosten edrosten 494K Jul 25 14:09 fast_9_score.o

and after strip*.o:

fast $ls -lh *.o
-rw-r--r--  1 edrosten edrosten  18K Jul 25 16:42 fast_10_detect.o
-rw-r--r--  1 edrosten edrosten  48K Jul 25 16:42 fast_10_score.o
-rw-r--r--  1 edrosten edrosten  15K Jul 25 16:42 fast_11_detect.o
-rw-r--r--  1 edrosten edrosten  40K Jul 25 16:42 fast_11_score.o
-rw-r--r--  1 edrosten edrosten  14K Jul 25 16:42 fast_12_detect.o
-rw-r--r--  1 edrosten edrosten  33K Jul 25 16:42 fast_12_score.o
-rw-r--r--  1 edrosten edrosten  83K Jul 25 16:42 fast_7_detect.o
-rw-r--r--  1 edrosten edrosten 237K Jul 25 16:42 fast_7_score.o
-rw-r--r--  1 edrosten edrosten  45K Jul 25 16:42 fast_8_detect.o
-rw-r--r--  1 edrosten edrosten 122K Jul 25 16:42 fast_8_score.o
-rw-r--r--  1 edrosten edrosten  26K Jul 25 16:42 fast_9_detect.o
-rw-r--r--  1 edrosten edrosten  70K Jul 25 16:42 fast_9_score.o


with:
fast $g++ -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ./configure --prefix=/n/projects/connectionist 
--with-languages=all
Thread model: posix
gcc version 4.1.0

> FWIW, the fedora 6 compiler (4.1.2) behaves the same way, all on 64-bit 
> machines.

I expect there's some -fdisable-some-kind-of-optimization you could use 
which would make it much faster. I found -fno-strength-reduce is required 
on really huge trees. It's a very good optimization, so I don't reccomend 
leaving it out in general.


> > I've added some configure options so you can disable some FAST
> > detectors.
> > Try this:
> >
> > --enable-missingfast=7,8,10,11,12
>
> Cool.

It should work, but it's not 100% tested (as usual).

-Ed